ELECTROLYTIC CELL FOR PRODUCING HYDROGEN PEROXIDE SOLUTION AND HYPOHALIDE, AND METHOD THEREFOR

• Main Authors: NISHIKI YOSHINORI, UNO MASAHARU, NISHIMURA KUNIO, NAKAJIMA YASUO, KATSUMOTO AKIRA, YAMANE GENZO
• Format: Patent
• Language: English
• Published: 03.10.2002
• Edition: 7
• Subjects: APPARATUS THEREFOR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide a chemical which simultaneously produces hydrogen peroxide and hypohalide ions and is particularly suitable for seawater treatment. SOLUTION: In the electrolytic cell in which an anode chamber for holding an insoluble anode which can oxidize halide ions and a cathode chamber for holding a gas diffusion cathode which can oxidize an oxygen-containing gas to produce hydrogen peroxide are devided with at least one membrane, electrolysis is performed by feeding halide ion-containing water to the anode chamber and an electrolytic solution to the cathode chamber. In this way, a hypohalide is produced in the anode chamber, and hydrogen peroxide is produced in the cathode chamber, respectively. By suitably setting electrode substances and electrolytic conditions, hydrogen peroxide and the hypohalide are simultaneously produced differently from the conventional case so that the cost of electric power and the cost incidental thereto can remarkably be reduced.